from flask import Flask

app = Flask(__name__)

@app.route('/hello/<name>')
def hello_world(name):
    return f'Hello World! {name}'

@app.route('/blog/<int:post_id>')
def show_blog(post_id):
    return f'Blog Post {post_id}'

if __name__ == '__main__':
    app.run(debug=True, threaded=True)